it's such an honor to represent the united states. >> sarah williams says she can't believe she'll be heading to london to play a special role in the summer olympics. one of 22 americans chosen by coca-cola to carry the olympic torch. >> reporter: i was shocked out of all the people that must have been nominated for this, i don't know what they saw in me. >> what they saw, an incredible spirit of giving. inspired by a book written by a former foster child. she started a blanket making program four years ago. and now the project spread nationwide. >> kids are on called the forgotten children. they don't have anything. so a blanket, if you think of what that simt bollizes, comfort, security warmth, something that they don't have. >> thanks to williams, thousands of children across the bay area and the nation have something to hold on to. to thor a dream and martinez distributes the blankets to area children several times a year. >> they count on these blankets. they know when they come get a backpack, they're going to get a new blanket. >> you always think you're the one that's coaching